Skip user selection at Windows XP Starup

Recently I have installed a fresh copy of Windows XP Pro on my desktop. It is a stand alone computer connected to the internet. For the first week or so as soon as I would power up the machine it would go straight to my desktop. Then, all of a sudden, when I power on the machine it brings me to the user selectoin screen where I have to click my name or picture icon to proceed to my desktop. While I understand this feature is nice for multiple users, or if you have a username and password set, I on the other hand am not worried about these security functions and don't want them there. Is there anyway to configure windows so that it will bypass the user selection screen and just go to my desktop?

Also, when ever I am away from the machine for 5-10 min (whatever I have the timelimit on the screensaver set at) when I move the mouse and the screen saver goes away, i'm again presented with the user selection screen, instead of just going back to the desktop. Can this be fixed as well?

You can use Registry Editor to add your log on information. To do this, follow these steps: 1. Click Start, click Run, type regedit, and then click OK.
2. Locate the following registry key:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\Winlogon
3. Using your account name and password, double-click the DefaultUserName entry, type your user name, and then click OK.
4. Double-click the DefaultPassword entry, type your password under the value data box, and then click OK.

If there is no DefaultPassword value, create the value. To do this, follow these steps: a. In Registry Editor, click Edit, click New, and then click String Value.
b. Type DefaultPassword as the value name, and then press ENTER.
c. Double-click the newly created key, and then type your password in the Value Data box.
If no DefaultPassword string is specified, Windows XP automatically changes the value of the AutoAdminLogon registry key from 1 (true) to 0 (false) to turn off the AutoAdminLogon feature.
5. Double-click the AutoAdminLogon entry, type 1 in the Value Data box, and then click OK.

If there is no AutoAdminLogon entry, create the entry. To do this, follow these steps: a. In Registry Editor, click Edit, click New, and then click String Value.
b. Type AutoAdminLogon as the value name, and then press ENTER.
c. Double-click the newly created key, and then type 1 in the Value Data box.

Enable/Disable Logon Screen Saver
Note: This applies only to the default Login [login.scr] screensaver and is not the same as screensaver selections made in the [Display Properties] property sheet accessed by right clicking on the desktop and selecting [Properties] from the context menu.